#include <stdio.h>

int main() {
    char c;
    while(scanf("%c",&c)!=EOF)
    {
        if(c=='a'||c=='e'||c=='i'||c=='o'||c=='u'||c=='A'||c=='E'||c=='I'||c=='O'||c=='U')
        printf("Vowel\n");
        else
        printf("Consonant\n");
        getchar();
    }
    return 0;
}